Follow the steps to successfully complete the CO DoR DR 0145 form.

1. Press the ‘Get Form’ button to obtain the form and open it in the editing interface.
2. In line 1, enter all applicable taxpayer information. If applicable, also include the spouse's information and a valid tax identification number such as a CAN, EIN, ITIN, or SSN.
3. In line 2, mark either option (a) for tax information authorization (TIA) or (b) for power of attorney (POA). This will designate the authority to the person(s) you specify.
4. Proceed to line 3, where you should enter at least one individual authorized to act on behalf of the taxpayer along with their contact information.
5. In line 4, specify the tax matters authorized by this form. If this applies to all tax periods and account types, you may leave this section blank.
6. For line 5, if you want to retain any prior power of attorney forms, check the appropriate box and attach a copy of such forms.
7. In line 6, specify the expiration date of this authorization if different from the default expiration of four years.
8. Finally, in line 7, sign and date the form. If applicable, acquire the spouse's signature.
9. Once completed, save your changes, download a copy, print, or share the form as necessary.

Complete your CO DoR DR 0145 form online to ensure your tax matters are handled efficiently.